MAC Users:Choose the size of wallpaper for your screen and click
on the link. An artwork will open in a new window. Drag the image
to your desktop and save it. Now click the Apple icon in the top
left corner. Click 'System Preferences', then click the 'Desktop & Screensaver'
icon. Now click 'Choose Folder'. Select the wallpaper you have saved
to your computer. Done deal.

PC Users:Choose the size of wallpaper for your screen and
click on the link. A photo will open in a new window. Right click
on the
photo and choose "Set As Background". That's it, you're
a Fortunate!